CD74FCT541TM

Overview

The CD74FCT541TM is an octal bus driver manufactured by Harris Corporation, belonging to the FCT series. It features a single function with eight-bit true output capability in a CMOS technology implementation. The device utilizes a 20-pin PDSO (Small Outline) package. Key electrical parameters include a maximum low-level output current of 64 mA and a load capacitance of 50 pF. It operates within a temperature range of -40°C to 85°C and supports dual output enable control with active-low logic.

Feature Summary

• Provides octal data buffering with true output polarity for non-inverting signal transmission
• Features three-state outputs controlled by dual active-low enable inputs
• Utilizes BICMOS/FCT technology for high-speed performance and low power consumption

Applications

• High-speed data bus buffering in computer systems
• Clock drivers and buffer circuits
• Memory address register buffering

Procurement Notes

Verify the manufacturer designation, as Harris Corporation's semiconductor assets were acquired. Confirm the specific suffix 'TM' corresponds to the 20-SOIC package variant. Check RoHS compliance status, as older Harris FCT parts may not meet current environmental standards. Ensure the operating temperature range (-40°C to 85°C) matches system requirements. Validate pinout compatibility if replacing legacy components.

Selection Notes

Select this component when an octal, non-inverting bus driver with three-state outputs is required. The FCT series offers speed comparable to LS-TTL but with CMOS power levels. Consider the 20-SOIC package for surface-mount applications. Verify that the 64 mA sink current capability meets the load requirements. Ensure the dual enable feature aligns with the system's control logic design.

Part Context

The CD74FCT541 is part of Harris Corporation's Fast CMOS (FCT) logic family, designed for high-performance digital applications. This specific model is an octal buffer/driver with true outputs. It is distinct from the CD74FCT541CTM, which shares similar electrical characteristics but may differ in packaging or qualification standards. The TM suffix typically denotes the tape-and-reel or specific SOIC variant.

Replacement Considerations

CD74FCT541CTM: Octal bus driver with similar electrical specs; verify package and RoHS status differences.